Hello all, I have the following scenario: I have 5 or 6 related sqlalchemy declarative models sitting in a pyramid app. This occurs in the context of extending a pyramid application, where I import/config.scan() these selected models from another pyramid app into a new app. The thing is that these models have the original app's declarative base and I need them to work with the new app's declarative base.
So I tried to change their declarative base upon importing. (also with giving a new name to avoid possible name collisions) This was my approach: newmodel = type(newmodelname, (newdeclarativebase, oldmodel), {}) which worked out pretty well!!! except for one nuisance, which is that already instrumented relationships are still bound to the old models instead of the new ones. class OldParentModel(oldbase): rel = relationship("OldChildModel") >> new = query(NewParentModel).first() >> new.rel [<oldapp.models.OldChildModel at 0xb1cbfac>] I wished that they are linked to NewChildModel instead. so is there a way to avoid this problem or at least remap the already mapped relationships to the new models? Or perhaps a whole different approach to dealing with this (without actually redefining the whole classes again in the new app)? Cheers, Ahmed -- You received this message because you are subscribed to the Google Groups "sqlalchemy" group. To unsubscribe from this group and stop receiving emails from it, send an email to sqlalchemy+unsubscr...@googlegroups.com. To post to this group, send email to sqlalchemy@googlegroups.com. Visit this group at http://groups.google.com/group/sqlalchemy. For more options, visit https://groups.google.com/groups/opt_out.